Sean N. Hsu (徐祥寧)


Location:  Dallas, Texas
Main:  214-390-9999
Direct:  214-888-0219
Fax:  214-586-0680
Email:   shsu@jvllp.com
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Sean Hsu

Sean Hsu is a licensed patent attorney whose practice focuses on intellectual property licensing, enforcement, and commercial disputes. With his training in electrical engineering, he is well qualified to represent the intellectual property and commercial needs of clients—from small businesses to multinational corporations. He has handled legal matters in a variety of industries, including semiconductors, telecommunications, biomedical devices, software and embedded systems.

Sean is also registered to practice before the United States Patent and Trademark Office and has represented clients in Inter Partes Reviews before the Patent Trial and Appeal Board during district court litigation. This dual role helps clients efficiently and consistently prepare their cases.

Sean’s practice also includes helping technology and start-up companies strategically protect their valuable intellectual property to better pursue their commercial objectives. To that end, Sean and the firm are members of several local chambers of commerce to serve as a resource for the business community.

Sean graduated from the University of Texas at Austin in 2003 and received a B.S. in Electrical Engineering with an emphasis in microprocessor programming and biomedical engineering. He received his law degree from SMU Dedman School of Law in 2007. Prior to joining Janik Vinnakota, Sean worked at both large and boutique trial law firms in Dallas, Texas, where he represented clients from solo inventors to Fortune 500 companies.

Representative Cases:

Patent Defense Litigation

Blitzsafe Texas, LLC v. Honda Motor Co. Ltd. et al; Nissan North America, Inc. and Nissan Motor Co. Ltd. (Eastern District of Texas, Marshall Division)
Defending automaker Nissan in consolidated multi-patent infringement action involving the interfaces of external devices to car audio environments.

Patent Enforcement Litigation

RYDEX, LTD. v. GENERAL MOTORS LLC et al (S.D.Tex.) 4:11-cv-00122
Represented foreign automotive manufacturer in a patent infringement suit regarding RFID technology and vehicle ignition systems.

Norman IP Holdings, LLC v. Lexmark International, Inc. et al (E.D.Tex.) 6:11-cv-00495
Represented domestic automotive manufacturer in a patent infringement suit regarding embedded systems designs, signal processing, and wireless communications protocols.

Norman IP Holdings, LLC v. Chrysler Group LLC et al (E.D.Tex.) 6:13-cv-00278

Represented foreign automotive manufacturer in a patent infringement suit and PTAB proceedings regarding embedded systems designs and signal processing.

Manitto Technologies, L.L.C. v. Ferrari North America, Inc. (E.D.Tex.) 2:14-cv-01105
Represented foreign automotive manufacturer in a patent infringement suit regarding satellite communications and integrated navigation systems.

Phoenix Licensing, L.L.C. et al v. Advance America, Cash Advance Centers, Inc. (E.D.Tex.) 2:15-cv-01367

Represented foreign automotive manufacturers in patent infringement suits regarding software automation of data processing and customer communications.

Uniloc Luxembourg S.A. et al v. Take-Two Interactive Software, Inc. et al (E.D.Tex.) 6:12-cv-01013
Represented domestic software company in a patent infringement suit regarding software authentication algorithms.

Innovative Display Technologies LLC v. HYUNDAI MOTOR GROUP et al (E.D.Tex.) 2:14-cv-00201

Represented foreign automotive manufacturers in a patent infringement suit regarding the design, manufacturing, and structure of light emitting panel assemblies.

Rothschild Connected Devices Innovations,LLC v. ADT LLC (E.D.Tex.) 2:15-cv-00156
Represented domestic automotive manufacturer in a patent infringement suit regarding vehicle telematics and remote access technology.

Somaltus, LLC v Auto Meter Products, Inc. (E.D.Tex.) 2:15-cv-00201

Represented foreign automotive manufacturer in a patent infringement suit regarding integrated battery charging and monitoring systems.

Voxathon LLC v. Alpine Electronics of America, Inc. (E.D.Tex.) 2:15-cv-00562
Represented foreign automotive manufacturer in a patent infringement suit regarding software and systems for handling incoming telephone calls.

Long Corner Consumer Electronics LLC v. Huawei Device USA Inc. (E.D.Tex.) 2:13-cv-01007
Represented foreign handheld device manufacturer in a patent infringement suit regarding device input systems and touchscreen manipulation.

Kappa Digital, LLC v. OnStar, LLC et al (E.D.Tex.) 2:15-cv-01775
Represented domestic automotive manufacturer in a patent infringement suit regarding telematics and wireless communication systems.

Trademark Enforcement Litigation

Chanel, Inc. v. Etrade Supply USA, Inc. et al (N.D.Tex.) 3:15-cv-03241
Represented an importer of foreign goods in a trademark infringement suit involving the alleged shape of an imported part.

Tyco Fire Products LP v. Globe Technologies Corp. (TTAB) 91212425 and 91220233
Represented a domestic parts manufacturer in a trademark registration proceeding involving various fusible link shapes and designs.

Complex Commercial Litigation

Jiayan Lifting Co., Ltd. and Sino Wang v. Ramz LLC, Manzar Syed a/k/a Syed Khudadad, and Arshad A. Bhatti (S.D. Tex.)
Represented a foreign construction company and their agent in a breach of contract suit involving the overseas purchase of heavy equipment.

Copyright Enforcement Litigation

Ediciones Selectas, Diamante, S.A. de C.V. v. Giron Spanish Book Distributors, Inc. (S.D. Tex.) 4:12-cv-02558
Represented a foreign bookstore in a copyright infringement suit involving reproduced works.

Products-Liability Litigation

Van Westen v. General Motors (Iowa Dist. Ct.) 03721-LACV-019393
Represented domestic automotive manufacturer in a products liability suit regarding alleged defects in the design of a component supplied by a third party. Admitted pro hac vice.

Practice Areas

  • Intellectual Property Litigation
  • Patent Portfolio Management and Licensing
  • Business Litigation
  • Products Liability Litigation
  • International – Fluent in Mandarin


  • J.D., Southern Methodist University – Dedman School of Law, 2007
  • B.S., Electrical Engineering, University of Texas at Austin, 2003

Bar and Court Admissions

  • Texas, 2007
  • U.S. Supreme Court
  • U.S. Patent and Trademark Office
  • U.S. District Courts for the Northern, Southern and Eastern Districts of Texas

Professional Affiliations & Activities

  • State Bar of Texas
  • Member, Dallas Bar Association
  • Member, Dallas Regional Chamber
  • Member, Dallas Asian Chamber of Commerce
  • Member, National Asian Pacific American Bar Association
  • Member, Chinese Institute of Engineers
  • Member, Dallas Asian American Bar Association
  • Member, Thomas Moore Society
  • Sacred Heart of Jesus Catholic Church – Plano


  • Recognized as a Rising Star in Rising Stars Edition of Texas Super Lawyers Magazine (2010)
  • Computer & Technology Law Review Journal, 2006-2007
  • Round of 32, Willem C. Vis International Moot Court Competition, 2007
  • Jessup Moot Court Competition Southwest Regionals, Finalist 2006
  • Jackson Walker Moot Court Competition, Finalist 2005

Publications and Presentations

  • Speaker, 2016 Austin Startup Week – TechStars, Austin, Texas, “Legal Pitfalls Startups Face,” October 6, 2016
  • Speaker, University of Texas at Arlington, “Patent Portfolio Strategies and Licensing,” 2011